oker writes: From the article: "Researchers at Carnegie Mellon were able to not only match unidentified profile photos from a dating website (...) with positively identified Facebook photos, but also match pedestrians on a North American college campus with their online identities. (...) we predicted the interests and Social Security numbers of some of the participants (...) the goal of Experiment 3 was to show that it is possible to start from an anonymous face in the street, and end up with very sensitive information about that person, in a process of data 'accretion.' ". Do we really enter "Minority Report"-like world?